矛盾体系中处于支配地位并对事物发展起决定作用的矛盾是( )。

Passage One． 听材料，回答下列各题：

A.Less than 7 billion.

B.Half a billion.

C.No more than 70 million.

D.About 15 million.

Passage One． 听材料，回答下列各题：

A.Herparents thrived in the urban environment．

B.Her parents left Chicago to work on a farm．

C.Her parents immigrated to America．

D.Her parents set up an ice-cream store．

Passage One． 听材料，回答下列各题：

A.To measure the movement of waves in the ocean.

B.To determine whether the Earths temperature is going up.

C.To study the behavior. of some sea animals.

D.To measure the depths of the ocean.

Passage One． 听材料，回答下列各题：

A.Because foxes kill farm animals

B.Because foxes look just like farm dogs．

C.Because foxes are very cunning．

D.Because foxes may harm farmers’children．

Passage One． 听材料，回答下列各题：

A.They care a lot about children．

B.They need looking aRer in their old age．

C.They want to enrich their life experience．

D.They want children to keep them company．

Passage Two． 听材料，回答下列各题：

A.The performance required for a certain job.

B.The required behavior, knowledge and skills.

C.The training contents and methods required.

D.The costs and the quality of the programme.

A.The replacement of the harpsichord by the piano.

B.The development of electronic musical instruments.

C.The relative costs of different types of musical instruments.

D.The performance of classical music on synthesizers.

A.Because of its shape.

B.Because of its skin.

C.Because of its size.

D.Because of its behavior.

A.Improve themselves.

B.Get rid of empty dreams.

C.Follow the cultural tradition.

D.Attempt something impossible.

Passage Three． 听材料，回答下列各题：

A.Germany.

B.Japan.

C.The U.S.

D.The U.K.